Search results for "multi-body dynamics"

showing 2 items of 2 documents

Head, chest and femur injury in teenage pedestrian–SUV crash; mass influence on the speeds

2018

This work studies the teenage pedestrian–sport utility vehicle (SUV) crash; injury to the vital parts of the body, such as the head and chest, and to the femur is evaluated. More advanced injury criteria are applied, as provided in the rules. The multibody technique is applied by making use of SimWise software and of the teenager anthropomorphic model, the use of which is now consolidated. Head injury criterion (HIC) is used for the head, thoracic trauma index (TTI) criterion for the thorax in the case of side impact and 3 ms criterion in the case of frontal impact, while the force criterion is used for the femur. Both the TTI and femur load evaluation require non-substantial modifications…

ThoraxOrthodontics050210 logistics & transportationSettore ING-IND/11 - Fisica Tecnica Ambientalebusiness.industryMechanical Engineering05 social sciencesaccident reconstruction; active safety systems; passenger safety/crashworthiness: multi-body dynamics; road safety; vehicle safety systems; vehicle simulation/modellingAerospace EngineeringCrash02 engineering and technologyPedestrianAccident reconstruction active safety systems passenger safety/crashworthiness: multi-body dynamics road safety vehicle safety systems vehicle simulation/modellingSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine020303 mechanical engineering & transports0203 mechanical engineering0502 economics and businessVehicle safetyMedicineHead (vessel)FemurbusinessActive safety systemsProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
researchProduct

Enhanced chain dynamics in loop-sorting-systems by means of layout optimization and a kinematic model of the polygon action

2012

Published version of an article in the journal: Structural and Multidisciplinary Optimization. Also available from the publisher at: http://dx.doi.org/10.1007/s00158-011-0743-7 Poor dynamics owing to polygon action is a known concern in mechanical applications of closed articulated chains. In this paper a kinematic model of the polygon action in large chains of loop-sorting-systems is proposed. Through optimization techniques the chain dynamics is improved by minimizing the polygon action using a parametric model of the track layout as design variables. Three formulations of the kinematic polygon action are tested on an average sized planer tracks layout to find a superior model. Verificati…

polygon actionLoop (graph theory)Mathematical optimizationControl and OptimizationComputer scienceengineeringVDP::Technology: 500::Mechanical engineering: 570SortingKinematicsloop-sorting-systemsComputer Graphics and Computer-Aided DesignAction (physics)Computer Science Applicationsmulti-body dynamicsChain (algebraic topology)Control and Systems EngineeringParametric modelPolygonEngineering design processAlgorithmoptimizationSoftware
researchProduct